PowerFlex 753 VFD Fault Codes - Wireless Telemetry
Application Note: PowerFlex 753 Fault CodesVersion 00101 May 2018PowerFlex 753 Fault CodesIf a FAULT has occurred, and you are at the TELEMETRY USER INTERFACE:1. Note the FAULT CODE in the TELEMETRY USER INTEFACE.2. Turn all VFD’s OFF via the TELEMETRY USER INTERFACE.3. Address the condition that caused the FAULT.See Table Below For List of Fault Codes and Descriptions.The cause must be corrected before the fault can be cleared.Corrective action may require a troubleshooting/repair visit to the VFD site.4. After corrective action has been take, clear the fault by:Modify Station Setpoints with a CHECKMARK in the setting:“RESET VFD ONESHOT”.5. To resume normal operation, turn all VFD’s back to AUTO via the TELEMETRY USERINTERFACE.If a FAULT has occurred, and you are at the KEYPAD:1. See Table Below For List of Fault Codes andDescriptions.2. Turn all VFD’s OFF via the TELEMETRY USERINTERFACE or via Control Panel.3. Press RESET BUTTON on the KEYPAD toacknowledge the FAULT.The fault information will be removed so that you canresume using the keypad.4. Address the condition that caused the FAULT.The cause must be corrected before the fault can becleared.5. After corrective action has been take, clear the faultby:Press STOP at the KEYPAD.or.Cycle VFD Power (VFD shutdown may take upto 1 minute to discharge capacitor energy).6. To resume normal operation, turn all VFD’s back toAUTO via the TELEMETRY USER INTERFACE or viathe Control Panel.Page 1 of 1
TroubleshootingDrive Fault and AlarmDescriptionsChapter 6Table 10 contains a list of drive-specific faults and alarms and includes thefollowing information: The fault or alarm type The action that is taken when the drive faults The parameter that is used to configure the fault or alarm (if applicable) A description and action (where applicable)The faults and alarms that are listed in Table 10 only apply to non-IntegratedMotion applications. See Table 39 on page 527 for a list of Integrated Motionfaults.Table 10 - Drive Fault and Alarm Types, Descriptions, and ActionsEventNo.Fault/Alarm Description/Action(s)0No Entry2Auxiliary InputResettable FaultCoast157 [DI Aux Fault]YAn auxiliary input interlock is open. A condition within the applicationis not allowing the drive to energize the motor and the digital inputthat is assigned in P157 [DI Aux Fault] has forced this fault.3Power LossConfigurable449 [Power Loss Actn]YThe DC bus voltage remained below the [Pwr Loss n Level] of nominalfor longer than the time programmed in [Pwr Loss n Time].4UnderVoltageConfigurable460 [UnderVltg Action]YIf the bus voltage indicated in P11 [DC Bus Volts] falls below the valueset in P461 [UnderVltg Level] an undervoltage condition exists.5OverVoltageResettable FaultYThe DC bus voltage exceeded the maximum value.See P11 [DC Bus Volts].7Motor OverloadConfigurableYAn internal electronic overload trip has occurred.See P7 [Output Current], P26 [Motor NP Amps, P413 [Mtr OL Factor],and/or P414 [Mtr OL Hertz].8Heatsink OvrTempResettable FaultCoastYThe heatsink temperature has exceeded 100 % of the drivetemperature.Heatsink over temperature occurs between 115 120 C. The exactvalue is stored in drive firmware.See P943 [Drive Temp Pct] and/or P944 [Drive Temp C].9Trnsistr OvrTempResettable FaultCoastYThe output transistors have exceeded the maximum operatingtemperature.See P941 [IGBT Temp Pct] and/or P942 [IGBT Temp C].If using the drive on a chiller plate, P38 [PWM Frequency] must be setto 2 kHz.10DynBrake OvrTempAlarm 112HW OverCurrentResettable FaultCoastYThe drive output current has exceeded the hardware current limit.Insulation Resistance (IR) test the wiring to motor.13Ground FaultResettable FaultCoastYA current path to earth ground greater than 25 % of drive rating hasoccurred.14Ground WarningConfigurable466 [Ground Warn Actn]The ground current has exceeded the level set in P467 [Ground WarnLvl].15Load LossConfigurable441 [Load Loss Action]The output torque current is below the value programmed in P442[Load Loss Level] for a time period greater than the time programmedin P443 [Load Loss Time].Coast410 [Motor OL Actn]The dynamic brake resistor has exceeded its maximum operatingtemperature.Check settings of parameters P382 [DB Resistor Type] through P385[DB ExtPulseWatts].Rockwell Automation Publication 750-PM001N-EN-P - February 2017309
Chapter 6TroubleshootingEventNo.Fault/Alarm TextType17Input Phase LossConfigurable462 [InPhase LossActn]The DC bus ripple has exceeded a preset level. Make these checks andadjustments in this order. Check input impedance balance. Increase the setting of P463 [InPhase Loss Lvl] to make the driveless sensitive. Tune the bus regulator or speed regulator to mitigate the effects ofdynamic cyclic loads on DC bus ripple. Disable the fault by setting P462 [InPhase LossActn] to 0 “Ignore”and use an external phase loss detector such as a Bulletin 809Srelay.250 [PTC Cfg]Motor PTC (Positive Temperature Coefficient) over temperature.18Motor PTC TripConfigurable19Task OverrunAlarm 120TorqPrv Spd BandResettable Fault21Output eterAutoResetDescription/Action(s)System resource utilization is at or above 90 % of capacity. Review thesystem resource allocation table on page 307.CoastThe difference between P2 [Commanded SpdRef] and P3 [Mtr VelFdbk] has exceeded the level programmed in P1105 [Speed DevBand] for a time period greater than the time programmed in P1106[SpdBand Intgrtr].444 [OutPhaseLossActn]The current in one or more phases has been lost or remains below thethreshold set in P445 [Out PhaseLossLvl] for 1 second. Decreasing thethreshold makes the drive less sensitive to tripping. A deceasedthreshold is necessary when the motor is smaller than the driverating.If TorqProve is active, the current in one or more phases has beenlost or remains below a threshold for five msecs. The phases arechecked at start to be sure that torque is delivered to the load. If thedrive is faulting on start, increase P44 [Flux Up Time].If TorqProve is active, and the brake is slipping, this fault occurs. WhenTorqProve is used, before the signal to the brake is applied to releaseit, the flux up time is used to check the three phases. The angle isadjusted to be sure that current is flowing through all three phases. Ifthe motor moves during this test, the brake is not holding and a phaseloss can occur.If TorqProve is active, and no brake is present, this fault occurs.Check for an open output contactor.ATTENTION: If a PM motor is used and motorphase is lost, lower P445 [OutPhaseLossLvl]to 0 if TorqProve is not used or the driveoutput (motor) contacts are not used.Otherwise, lower P445 [OutPhaseLossLvl]until the drive is able to start and run withoutfaulting.24Decel InhibitConfigurable25OverSpeed LimitResettable Fault310409 [Dec Inhibit Actn]CoastThe drive is not following a commanded deceleration because it isattempting to limit the bus voltage.For high inertia loads, set P621 [Slip RPM at FLA] to 0 (V/Hz and SVCmodes only).YThe motor operating speed exceeds the limit set by the maximumspeed setting P524 [Overspeed Limit]. For forward motor rotation,this limit is P520 [Max Fwd Speed] P524 [Overspeed Limit]. Forreverse motor rotation, this limit is P521 [Max Rev Speed] - P524[Overspeed Limit]. When flux vector control modes are selected in P35[Motor Ctrl Mode], P131 [Active Vel Fdbk] determines the motoroperating speed. For all other non-flux vector control modes, P1[Output Frequency] determines the motor operating speed.Rockwell Automation Publication 750-PM001N-EN-P - February 2017
toResetChapter 6EventNo.Fault/Alarm TextTypeDescription/Action(s)26Brake SlippedAlarm 1The encoder movement has exceeded the level in P1110 [Brk SlipCount] after the brake was set and the brake slip maneuver iscontrolling the drive. (Drive is active.) Cycle power to the drive toreset.Alarm 2The encoder movement has exceeded the level in P1110 [Brk SlipCount] after the brake was set and the brake slip maneuver is finished.(Drive is stopped.) Cycle power to the drive to reset.27Torq Prove CflctAlarm 2When P1100 [Trq Prove Cfg] is enabled, these parameters must beproperly configured: P35 [Motor Ctrl Mode] P125 [Pri Vel Fdbk Sel] and P135 [Mtr Psn Fdbk Sel] must be set toa valid feedback device. The feedback device does not have to bethe same device. However, Open Loop and Simulation Feedbackare not considered valid feedback devices.If parameters 125 and 135 are set to a feedback module, verifythat the module parameters are set properly. On the module, thefeedback loss action CANNOT be set to 0 “Ignore.” Does not work inPM FV mode. Does not work with single ended or channel A onlyencoders.28TP Encls ConfigAlarm 2Encoderless TorqProve has been enabled but the application concernsof encoderless operation have not read and understood. Read the“Attention” on page 356 relating to the use of TorqProve with noencoder.29Analog In LossConfigurable33AuRsts ExhaustedResettable FaultCoast35IPM OverCurrentResettable FaultCoast36SW OverCurrentResettable FaultCoast383940Phase U to GrndPhase V to GrndPhase W to GrndResettable FaultCoastA phase to ground fault has been detected between the drive andmotor in this phase.Rotate U/T1, V/T2, W/T3 connections. If the problem follows the wire, suspect a field wiring problem. If no change, suspect a problem with the drive.414243Phase UV ShortPhase VW ShortPhase WU ShortResettable FaultCoastExcessive current has been detected between these two outputterminals.Rotate U/T1, V/T2, W/T3 connections. If the problem follows the wire, suspect a field wiring problem. If no change, suspect a problem with the drive.444546Phase UNegToGrndPhase VNegToGrndPhase WNegToGrndResettable FaultCoastA phase to ground fault has been detected between the drive andmotor in this phase.Rotate U/T1, V/T2, W/T3 connections. If the problem follows the wire, suspect a field wiring problem. If no change, suspect a problem with the drive.Coast263 [Anlg In0 LssActn]Analog input has a lost signal.348 [Auto Rstrt Tries]The drive attempted to reset a fault and resume running for theprogrammed number of tries, unsuccessfully.The current magnitude has exceeded the trip level set by P1640 [IPMMax Cur]. Set this value to 0 only when the drive is set to the V/Hz orSVC mode.YThe drive output current has exceeded the 1 ms current rating. Thisrating is greater than the 3 second current rating and less than thehardware overcurrent fault level. It is typically 200 250% of thedrive continuous rating.48System DefaultedResettable Fault49Drive Powerup–A Power Up Marker in the Fault Queue indicating that the drive powercycled.The drive was commanded to write default values.51Clr Fault Queue–Indication that the fault queue has been cleared.55Ctrl Bd OvertempResettable FaultCoastThe temperature sensor on the main control board detected excessiveheat. See product temperature requirement.58Module DefaultedResettable FaultCoastThe module was commanded to write default values.59Invalid CodeResettable FaultCoast61Shear Pin 1Configurable435 [Shear Pin 1 Actn]YThe programmed value in P436 [Shear Pin1 Level] has been exceeded.62Shear Pin 2Configurable438 [Shear Pin 2 Actn]YThe programmed value in P439 [Shear Pin2 Level] has been exceeded.Internal error.Rockwell Automation Publication 750-PM001N-EN-P - February 2017311
Chapter 6TroubleshootingEventNo.Fault/Alarm Text64Drive OverLoadType67Pump OffAlarm 1717273747576Port 1 AdapterPort 2 AdapterPort 3 AdapterPort 4 AdapterPort 5 AdapterPort 6 AdapterResettable Fault77IR Volts RangeAlarm 2Resettable FaultFluxAmpsRef RangConfigurationParameterAlarm 1Resettable n(s)P940 [Drive OL Count] has exceeded 50 % but is less than 100 %.P940 [Drive OL Count] has exceeded 100 %. Reduce the mechanicalload on the drive.Inverter fiber-optic connection is not detected on Frame 8 drive.This fault can occur on power-up if the control detects that no inverteris detected via the fiber-optic communication on a Frame 8 drive.Pump Off condition has been detected.CoastThe DPI communications option has a fault.See device event queue.The value for P73 [IR Voltage Drop], which is calculated from themotor nameplate data, is not within the range of acceptable values,as determined by the Calculated Autotune procedure.Check the motor nameplate data against parameters P25 [Motor NPVolts] through P30 [Motor NP Power].CoastThe measured value for P73 [IR Voltage Drop] is not within the rangeof acceptable values, as determined by the Static or Rotate Autotuneprocedure.Alarm 2The value for flux amps exceeds the value programmed in P26 [MotorNP Amps], as calculated by the Autotune procedure.Check motor nameplate data against parameters P25 [Motor NPVolts] through P30 [Motor NP Power].Resettable FaultCoastThe value for flux amps exceeds the value programmed in P26 [MotorNP Amps], as measured by the Static or Rotate Autotune procedure.79Excessive LoadResettable FaultCoastThe motor did not come up to speed in the allotted time duringAutotune.80AutoTune AbortedResettable FaultCoastThe Autotune function was manually canceled or a fault occurred.818283848586Port 1 DPI LossPort 2 DPI LossPort 3 DPI LossPort 4 DPI LossPort 5 DPI LossPort 6 DPI LossResettable FaultCoast87IXo VoltageRangeAlarm 2Resettable Fault91Pri VelFdbk LossConfigurable93Hw Enable CheckResettable Fault94Alt VelFdbk LossConfigurable312324 [Logic Mask]The DPI port stopped communicating.Check connections and drive grounding.The default for P70 [Autotune] is 1 “Calculate” and the voltage that iscalculated for motor inductive impedance exceeds 25 % of the valueof P25 [Motor NP Volts].CoastP70 [Autotune] is set to 2 “Static Tune” or 3 “Rotate Tune” and thevoltage that is measured for motor inductive impedance exceeds 25% of the value of P25 [Motor NP Volts].Note: See option modulefor configurationparameter numberCoastA Feedback Loss has been detected for the source of P127 [Pri VelFeedback]. The feedback loss could be due to a problem detected bythe feedback option module selected by P125 [Pri Vel Fdbk Sel] or dueto a loss in communication between the feedback option module andmain control board. The source of primary velocity feedback must beconfigured not to fault if the feedback loss switchover feature is used.The hardware enable is disabled (a jumper is installed) but indicatesnot enabled.Note: See option modulefor configurationparameter numberA Feedback Loss has been detected for the source of P128 [Alt VelFdbk Sel]. The feedback loss could be due to a problem detected bythe feedback option module selected by P128 [Alt Vel Fdbk Sel], ordue to a loss in communication between the feedback option moduleand main control board.Rockwell Automation Publication 750-PM001N-EN-P - February 2017
toResetChapter 6EventNo.Fault/Alarm TextTypeDescription/Action(s)95Aux VelFdbk LossConfigurableNote: See option modulefor configurationparameter numberA Feedback Loss has been detected for the source of P132 [Aux VelFdbk Sel]. The feedback loss could be due to a problem detected bythe feedback option module selected by P132 [Aux Vel Fdbk Sel], ordue to a loss in communication between the feedback option moduleand main control board.96PositionFdbkLossConfigurableNote: See option modulefor configurationparameter numberA Feedback Loss has been detected for the source of P847 [Psn Fdbk].The feedback loss could be due to a problem detected by the feedbackoption module selected by P135 [Mtr Psn Fdbk Sel], or due to a loss incommunication between the feedback option module and maincontrol board.97Auto Tach SwitchResettable FaultCoast635 [Spd Options Ctrl]Bit 7 “Auto Tach SW”Indication that either of the two following conditions exists. Tach switch has occurred and alternate feedback device has failed. Tach switch has not occurred, Auto Tach Switch Option is enabledand both primary and alternate devices have failed.100Parameter ChksumResettable FaultCoastThe checksum read from the non-volatile storage does not match thechecksum calculated. The data is set to the default value.101PwrDn NVS BlankResettable FaultCoastInternal data error. Reset parameter defaults. See publication 20HIM-UM001 forinstructions. Reload parameters. If problem persists, replace main control board.Fault normally occurs after a flash update to correct F117 fault.102NVS Not BlankResettable FaultCoastInternal data error.103PwrDn NVS IncompResettable FaultCoastInternal data error.104Pwr Brd ChecksumNon-Reset Fault106Incompat MCB-PBNon-Reset FaultCoastThe main control board did not recognize the power structure. Flashwith newer Application revision.107Replaced MCB-PBResettable FaultCoastThe main control board was moved to another power structure. Thedata is set to the default values.108Anlg Cal ChksumNon-Reset FaultCoastThe checksum read from the analog calibration data does not matchthe checksum calculated. Replace main control board.110Ivld Pwr Bd DataNon-Reset FaultCoastPower structure data invalid. Verify ribbon cable connection between the main control boardand the power interface board. Replace power interface board.111PwrBd Invalid IDNon-Reset FaultCoastPower structure ID invalid. Verify ribbon cable connection between the main control boardand the power interface board. Replace power interface board.112PwrBd App MinVerResettable FaultCoastPower structure needs newer Application revision. Flash with newerApplication revision.113Tracking DataErrResettable FaultCoastInternal data error.115PwrDn Table FullResettable FaultCoastInternal data error.116PwrDnEntry2LargeResettable FaultCoastInternal data error.117PwrDn Data ChksmResettable FaultCoastInternal data error.The checksum read from the non-volatile storage does not match thechecksum calculated. The data is set to the default value.118PwrBd PwrDn ChksResettable FaultCoastInternal data error.124App ID ChangedResettable FaultCoastApplication Firmware changed. Verify Application revision.125Using Backup AppResettable FaultCoastApplication did not flash correctly. Reflash.134Start On PowerUpAlarm 1137Ext Prechrg ErrConfigurableWhen P345 [Start At PowerUp] is enabled, an alarm is set for the timeprogrammed in P346 [PowerUp Delay].323 [Prchrg Err Cfg]The seal contact on the external precharge contactor has opened (assignalled by P190 [DI Prchrg Seal]) while the drive was running (PWMwas active).Rockwell Automation Publication 750-PM001N-EN-P - February 2017313
Chapter 6TroubleshootingEventNo.Fault/Alarm Description/Action(s)138Precharge OpenResettable FaultCoast321 [Prchrg Control]190 [DI Prchrg Seal]189 [DI Precharge]141Autn Enc AngleResettable FaultCoastP78 [Encdrlss AngComp] is out of range.142Autn Spd RstrctResettable FaultCoastFrequency limit settings are preventing the drive from reaching asuitable speed during an Inertia Tune test.143Autotune CurRegResettable FaultCoastCalculated values for P96 [VCL Cur Reg Kp] and/or P97 [VCL Cur RegKi] are out of range.144Autotune InertiaResettable FaultCoastResults from the Inertia Tune test out of range for P76 [Total Inertia].145Autotune TravelResettable FaultCoastWhen P77 [Inertia Test Lmt] is set, the Inertia Tune test was preventedfrom reaching a suitable speed to run the test.152No Stop SourceResettable FaultCoastLast stop source has been removed.155Bipolar ConflictAlarm 2P308 [Direction Mode] is set to 1 “Bipolar” or 2 “Rev Disable” and oneor more digital inputs is enabled for direction control.157DigIn Cfg BAlarm 2Digital input conflict. Input functions that cannot existsimultaneously have been selected (for example run and start).Correct Digital Input configuration.The internal precharge was commanded to open while the drive wasrunning (PWM was active). The internal fault latch is automaticallycleared when PW
The fault information will be removed so that you can resume using the keypad. 4. Address the condition that caused the FAULT. The cause must be corrected before the fault can be cleared. 5. After corrective action has been take, clear the fault by: Press STOP at th
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